一、颤抖病河蟹颤抖病又称环爪病、抖抖病,主要是由病毒感染引起河蟹的步足颤抖、环爪的疾病。1.流行:自1994年在江苏省个别养蟹池塘中发生颤抖病以来,接着在上海、浙江、安徽、江苏以至全国养殖河蟹的地区均有发生,且未采取有效防治措施的地区还在日趋严重。无论是池塘、稻田, First, trembling sick crab shudder disease, also known as ring claw disease, shaking disease, mainly caused by a virus infection crab foot trembling, ring claw disease. 1. Epidemic: Since the occurrence of quivering disease in individual crab ponds in Jiangsu Province in 1994, the areas where crabs and crabs have been cultured in Shanghai, Zhejiang, Anhui, Jiangsu and the whole country have also occurred, and areas that have not taken effective prevention and control measures are still growing serious. Whether it is ponds, rice fields,